Melt the 30 grams Butter and leave to the side. Add 1 Egg yolk, 2 Eggs, 250 ml Yoghurt, the 125 ml Extra Virgin Olive Oil, the 2 tbsp Cider Vinegar, the ½ tsp Sugar & 2 tsp Salt to a large mixing bowl. Whisk together and then add in the melted butter. Alternatively, add one ingredient at a time, mixing in-between each addition.
Mix the 2½ tsp Baking Powder in with the 565 grams Plain Flour, then gradually add the flour mixture to the wet ingredients. About a ladle/1 cup at a time, mixing well, until you have a manageable dough. It will have a soft feel but not be smooth like bread dough. You have added enough flour when you can mould a small piece into a ball. (See the video or process photos before this card for reference).
Flour dust some baking/parchment paper, on top of a chopping board & turn out the dough. Form into a disc & cut in half with a floured large knife. Take half the dough, form into a disc and cut in half again. Form that half into a disc and cut 4 triangles. Repeat with the other small half and make another 4 pieces. Repeat the process again with remainingg dough until you have 16 triangles of dough, about the same size.
Flour your palms and form one piece of dough into a small ball. See my video for my method. Repeat with the remaining 15 pieces of dough & then leave to rest while you prepare the filling.